公开(公告)号：US20220190769A1

公开(公告)日：2022-06-16

申请号：US17547719

申请日：2021-12-10

Applicant: LG ELECTRONICS INC.

Inventor： Kwang Sik KIM ,  Ha Min Song ,  Ki Wook Lee

IPC: H02P27/06 ,  H02P21/18

Abstract: Disclosed is a motor control apparatus, a motor control system, and a motor control method that estimate a stator resistance and a rotor position for sensorless control of a motor.

公开(公告)号：US11926951B2

公开(公告)日：2024-03-12

申请号：US17544238

申请日：2021-12-07

Applicant: LG ELECTRONICS INC.

Inventor： Ki Wook Lee ,  Han Su Jung ,  Kwang Sik Kim

IPC: D06F39/02 ,  D06F34/08 ,  D06F37/30 ,  H02P27/04 ,  H02P27/06 ,  D06F103/46

CPC classification number: D06F37/304 ,  D06F34/08 ,  H02P27/045 ,  H02P27/06 ,  D06F2103/46

Abstract: Disclosed are a motor control apparatus and a motor control method. Specifically, the motor control apparatus includes an inverter part configured to convert a direct current (DC) input into an alternating current (AC) output and provide the AC output to the motor, and a controller configured to control the inverter part in relation to driving of the motor, and the controller controls the inverter part to apply a first pattern voltage having the same phase to the motor and then apply a second pattern voltage having different phases to the motor.

公开(公告)号：US11784601B2

公开(公告)日：2023-10-10

申请号：US17547719

申请日：2021-12-10

Applicant: LG ELECTRONICS INC.

Inventor： Kwang Sik Kim ,  Ha Min Song ,  Ki Wook Lee

IPC: H02P27/06 ,  H02P21/18

CPC classification number: H02P27/06 ,  H02P21/18

Abstract: Disclosed is a motor control apparatus, a motor control system, and a motor control method that estimate a stator resistance and a rotor position for sensorless control of a motor.

公开(公告)号：US11736046B2

公开(公告)日：2023-08-22

申请号：US17565908

申请日：2021-12-30

Applicant: LG ELECTRONICS INC.

Inventor： Ki Wook Lee ,  Ha Min Song ,  Kwang Sik Kim

IPC: H02P23/12 ,  H02P6/22 ,  H02P6/182 ,  D06F37/30 ,  D06F34/08 ,  H02K11/225

CPC classification number: H02P6/22 ,  D06F34/08 ,  D06F37/304 ,  H02K11/225 ,  H02P6/182

Abstract: Disclosed is a motor control apparatus including an inverter part configured to convert DC power into AC power and provide the AC power to a motor, and a controller configured to control driving of the motor by using the inverter part, the controller configured to identify a stop position of a rotor in previous driving of the motor, and control the inverter part to apply an input signal of a specific pattern to the motor according to a start of driving the motor, wherein a phase of the input signal of the specific pattern is determined on the basis of the stop position of the rotor. Other example embodiments may be provided.

公开(公告)号：US20220190768A1

公开(公告)日：2022-06-16

申请号：US17547663

申请日：2021-12-10

Applicant: LG ELECTRONICS INC.

Inventor： Ha Min Song ,  Ki Wook Lee ,  Kwang Sik Kim

IPC: H02P27/06 ,  H02P21/18

Abstract: Disclosed is a motor control apparatus and a motor control method to estimate a stator resistance of a motor for sensorless control of the motor.

公开(公告)号：US11863094B2

公开(公告)日：2024-01-02

申请号：US17547663

申请日：2021-12-10

Applicant: LG ELECTRONICS INC.

Inventor： Ha Min Song ,  Ki Wook Lee ,  Kwang Sik Kim

IPC: H02P27/06 ,  H02P21/18

CPC classification number: H02P27/06 ,  H02P21/18

Abstract: Disclosed is a motor control apparatus and a motor control method to estimate a stator resistance of a motor for sensorless control of the motor.